Combined toolbox and tank for hydraulic fluid



FIG. 1 is a front and side perspective view of a combined toolbox and tank for hydraulic fluid showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof, the unshown opposite side being a mirror image thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a combined toolbox and tank for hydraulic fluid, as shown and described. 